package net.sharenav.osmToShareNav.area; import java.util.Comparator; public class LonComperator implements Comparator<Vertex> { @Override public int compare(Vertex o1, Vertex o2) { if (o1.getX() > o2.getX()) return 1; else if (o1.getX() < o2.getX()) return -1; else return 0; } }